Improvement in cylinder-cocks



2 Sheets-Sheet 1.

` J. RYAN. Cylinder-Cock.

' Patented Oct. 29, |878.

2 Sheets-Sheet 2.- J. RYAN'. Cylinder-Cook.

No, 209,518. Patented octf 29,1878.

- JOSEPH RYAN, OF ST. LOUIS, MISSOURI.

IMPROVEMENT IN CYLINDER-COCKS.

Specification forming part of Letters Patent No. 209,51 S, dated October29, 1878; application iiled 1 AAugust 12, 1878.

To all whom it may concern:

Be it known that I, JOSEPH RYAN, of St. Louis, Missouri, have inventedan Improved Automatic Cylinder-Cock, ot' which the following is aspecication:

This invention relates to that class of cylinder-cocks designed forpurposes of relieving steam-cylinders from the water of condensation,and consequently relieving the engine of back-pressure of water.

I will first fully describe the construction, arrangement, and operationof my improved device, and hereinafter point out the novel featuresthereof in the claims.

Of the drawing, Sheet I, Figure 1 is a plan view of my cylinder-cock,the main barrel and its interior parts being shown in horizontalsection, i Fig. 2 is a transverse sectional elevation of one of thehand-screw valves and centerpiece contained in one of the transversebarrels and its connection to the main barrel., Fig. 2% is a sectionalelevation of the centerpiece, containing the screw-valve and part of thetransverse barrel, showing, also, the valve closing the entrance thatleads to theinternal chamber of the center-piece.

Sheet II represents a modification of my im-V the engine `from itscondensation, and within each transverse barrel are provided theoperating parts that controlthe acting parts within the first-namedbarrelf` l The interior of Y 'themain barrel I construct as follows: a aare Ithevalve-chambers. a a are the valve-seats. b b and b1 b1 arewater-passages, communicating from each valve-chamber to the dischargewater-passagesb2 b2, which further communicate each ,to the internalchamber of the respective transverse barrels A', and nally discharge atthe center outlet,

b3. (See Fig. l.) b4 is a stationary partition or wall, having anannular passage through it, to contain, also to guide, the ends of thevalvestem. Further, the partition b4 has. a V-shaped extremity, dividingthe discharge-passages b2 b2, so that each of these shall discharge withfreedom out of the center outlet, bl. The ends of the main barrel areclosed by the screwcaps O, having the annular recess Ol, to form thebearing and guide for the outer ends of each valve-stem. Eachvalve-chamber, throu gh passages c c, communicates with the interiorchamber of the respective barrels A1.

The main barrel, cast or constructed as described, and shown in Fig. l,contains two valves, with their stems. D D are my pair of valves,arranged within the respective valvechambers, for purposes of'alternately discharging the received water fromgthe respect-4 tive endsofthe cylinder-cock. These valves are solid disks, with a beveled edgetoaccurately close on ltheir seats.` d cl are the stems,

made to project from each opposite side of the valves D D,.as shown. Thearrangement of the valves I) D is such that one closesits'seat while theotlieil is open or away from its seat. Further, theo'uter ends of eachstem extend intothe recess of the screw-caps C O, and the inner ends ofthe stems abut against each other in the center partition, b4. Thus saidvalves, by their stems, are guided accurately` when acting to open orclose their respective valve-chambers in accordance with the pressure.Both valves operate simultaneously, the pressure on onevalve beingimparted to the other, effecting the discharge of water through theoutletb, while the valve-chamberof the other valve remains closed bythelive steam that presses upon the closed valve..

The interior of eachl transverse barrel A and its contained 'pai-tslconstruct as follows: E is an internal chamber, communicating,

- by the ports c c, before; stated, tothe respective valve-chainbersinthe main barrel. Further, by the ports orv passages c c', communicationis established Vdirect with the discharge water-passages btb? of themain barrel. At c the barrels A have a valve-seat; at e a plain orthreadedshoulder, as shown in Figs. 2 and 2%. Both opposite ends of thebarrels Al are screw-threaded, to establish' at one end thepipe-connection to the steam-cylinder, and to contain at the other endthe following part-s: F is a center-piece, consisting of a tube havingone or more ports,f, a plain or threaded shoulder at f the cap F', andthe internal and outer screw threads. Through the ports j' communicationis established from the tube to the passages c', that lead to thedischarge water-passages b2 b2. The plain or threaded shoulder is toseat or unite the center-piece to the corresponding shoulder at e'. Theinternal threads receive the valve-stein, and otherwise, by the cap F',the center-piece can readily be screwed or unscrewed from each barrel.

G is a hand-screw valve', its stein g being threaded to pass through thecenter-piece F, and so that the valve can open or close bothvalve-seats-viz., the seat at c and the seat at c-or occupying aposition between said two y seats. The joint between the screw-caps Fand the stein g is closed by the screw-coupling G.

i The parts being thus constructed and arranged, the operation is asfollows: In starting the engine, the valve G G, I usually locate betweenthe two seats e and c', (see Fig. 2,) opening all the communications,and permitting the Water toy pass out readily. As soon as the engine iswarmed,7 the valves G G are screwed back against the inner face of thecenter-piece F, closing the entrance to its internal chamber. (See Fig.2%.) The valves G G being positioned as just stated, each transversebarrel has only that part of its internal chamber, E, open whichcommunicates by the passages c c direct to the valve-chambers and thewater-passages in the main barrel. Full communication therefore existsbetween the steam-cylinder and the cylinder-cock, and the latter isready to operate automatically. The pressure of steam, entering one ofthe transverse barrels, therefore, passes through the passage c in thevalve-chamber, and closes the open valve, drives it to its seat, at sametime thrusting the closed valve open, and the water of condensation thenescapes from the exhaust end of the steam-cylinder through the openvalve-chamber and its waterpassages, and finally out of the main outlet.At the next stroke of the engine this automatic action of the valves D Dis exactly reversed, and so on alternately.

It can be here stated that the V-shaped extremity divides thedischarging current-that is, prevents the discharge from one of thedischarge-passages b2 entering the opposite passage b2-and hence thecurrent with freedom discharges out of main outleta great advantage,especially in using the device as a blowoff cock.

As a blow-off cock, the valves G G arc positioned lnidway between `theseats e c. (See Fig. 2.) All the passages that lead from thesteam-cylinder to the chamber in each transverse barrel, and from theseto bot-h valvechambers and discharge-passages ofthe main (See Figs. 2and 2.)A

barrel, are then open. The previously-accumulated water in the cylindercan thus with the utmost freedom be discharged or blown out of thecylinder-cock. When the valves G G close the seats e e in eachtransverse barrel, all communication between the cylinder and thecylinder-cock is closed. This is done in case any grit or foreignsubstance should prevent the valves I) D from seating, and otherwise forpurposes of repairing the internal part-s. is unscrewed, and the valveby its stem can readily be removed an d replaced, also the cap replaced.Hence it will be noted that my de- .vice can be gotten at internallywithout the necessity of disconnecting the pipes that attach the cock tothe cylinder. Heretofore the vpipe attachment to the cylinder has alwaysbeen to the ends of the cylinder-cock, where my caps C G are, incurringgreat inconvenience, loss of time and labor, and the engine In operationthe modification is the same.4

The necessity for the change consists simply in affording a betteraccommodation to the operator. Thus, in case the hand-screw valves areused, a screw-motion must be imparted by hand. This to do isin somecases diflicult, especially when the cylinder-cock is applied to anengine out of the reach of the operator. The cock and its rod-connectionfacilitates, therefore, the handling of the cylinder-cock so located.

What I claim as my invention is-- y l. In a cylin der-cock, thecombination ofabarrel having the valve-chambers a, seats a', theduplicate passages b bl b2, divided by a stationary partition, b, havinga V-shaped eX- tremity, with relation to the passages b2, outlet b3, asshown and described, the reciprocating valves, each having stemsprojecting from opposite sides, and guided in action by the saidpartition and the screw-caps C C, substantially as and for the purposesset forth.

2. An automatic cylinder-cock consisting of transverse barrelscontaining a valve controlling the inlet to said barrels; further,having their internal chamber communicating by passages to. therespective valve-chambers in a main' barrel containing simultaneouslyalternating valves, and having said valve-chambers communicating withdischarge water-pas- 1Lgages, substantially as and for the purpose setorth.

horizontal barrel, havin g valve-chambers, each communicating todischarge water-passages,

To remove the obstacle, the cap C 3. A blow-off cock consisting of amain or said valve-chambers containing alternating acting valves,forming part of said main barrel, being transverse barrels, having theirchambers by passages communicating with the said valve-chambers;further, to the water-discharge passages, each transverse barrelcontaining a valve to control the said passages that lead to thevalve-chambers and to the discharge-passages, substantially as shown anddescribed.

4. The center-piece or tube F, having one or more ports, f, screw-cap F',in combination with a hand-screw valve, G', to control theinletopening` of the said tube F, substantially as set forth. f

5. lllhe centerpiece F, having the ports f, screw-cap 1*",the hand-screwvalve Gr, its stem passing through said center-piece, in combinationwith a barrel, its chamber having the seats at e c', by means whereofsaid chamber is controlled, in the manner and for the purposes setforth.

6. In acylinder-cock, the combination, with a main and horizontallyarranged barrel containing two alternating valves, of the transverse barrelscontaining a valve capable of controlling the inlet'to said barrels,whereby the water or steam entering the cylinder-cock is first admittedthrough the chambers of said transverse barrels preparatory to beingdischarged ont of the outlet of the main barrel.

7. As an improved article of manufacture, a cylinder-cock consisting ofa barrel, A, arranged horizontally, the barrels A', arrangedtransversely, the former containing two valves, D D, having stems d d,projecting as shown, the valve-chambers a a, communicating by passages bto passages b1 b2 and main outlet; further, by passages c c c' c' to thechambers of said barrels A', this latter having a valve to control theinlet as well as outlets of said transverse barrels, and effecting theadmission and the discharge from the main barrel, substantially as andfor the purposes set forth.

8. The transverse barrels A', having screwvalves G G, (or cocks,) withor without the center-piece F, the horizontal barrel A, containingreciprocating valves D D, leach of which have opposite projecting stemsd d, which are guided by a center partition, b4, and screw-caps C C;further, said barrel A, having the respective valve-chambers a a andseats a', and water-passages b b1 b2, the latter divided by a V-shapedpartition, all said parts being constructed and arranged to operate inthe manner and for the purposes set'forth.

In testimony of said invention I have hereunto set my hand.

JOSEPH RYAN. Witnesses Y WILLIAM W. HERTHEL, JOHN W. HER'rHEL.

